Sea weather in Wailuku in Hawaii All the beach weather in Wailuku

All the essential weather information for enjoying the beach in Wailuku in Hawaii, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Wailuku over the next 7 days?

Discover the best moment to go to the beach in Wailuku in Hawaii this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Wailuku. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Sunday 14 December 202574°F to 79°Frecommended
Monday 15 December 202574°F to 77°Frecommended
Tuesday 16 December 202570°F to 77°Frecommended
Wednesday 17 December 202570°F to 77°Fdiscouraged
Thursday 18 December 202570°F to 77°Frecommended
Friday 19 December 202574°F to 76°Fdiscouraged
Saturday 20 December 202574°F to 76°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Wailuku

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 06:55 and will set at 17:47 on the beach(es) of Wailuku. The outside temperature will be a high of 79°F t and a low of 74°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 11.8mph km/h (with gusts up to 16.8mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)23°C (74°F)24°C (75°F)25°C (77°F)25°C (78°F)25°C (78°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (78°F)25°C (78°F)26°C (78°F)27°C (80°F)27°C (80°F)27°C (81°F)26°C (79°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%79%81%74%69%69%76%79%
Barometric pressure1013 hPa1012 hPa1012 hPa1014 hPa1012 hPa1011 hPa1013 hPa1014 hPa
Cloud cover4%6%85%86%27%82%80%75%
Heat index26°C (78°F)25°C (78°F)26°C (78°F)27°C (80°F)27°C (80°F)27°C (81°F)26°C (79°F)26°C (78°F)
Dew point20°C (68°F)19°C (67°F)20°C (68°F)20°C (68°F)19°C (67°F)19°C (67°F)20°C (67°F)20°C (68°F)
Wind
Speed19km/h (12mph)16km/h (10mph)15km/h (9mph)9km/h (6mph)4km/h (3mph)6km/h (4mph)3km/h (2mph)7km/h (4mph)
Gusts27km/h (17mph)24km/h (15mph)22km/h (14mph)13km/h (8mph)7km/h (4mph)9km/h (6mph)4km/h (3mph)11km/h (7mph)
Direction 212°
SSW
202°
SSW
189°
S
181°
S
83°
E
50°
NE
327°
NNW
237°
WSW
Wind chill24°C (74°F)23°C (74°F)24°C (75°F)25°C (77°F)25°C (78°F)25°C (78°F)24°C (75°F)24°C (75°F)
Waves
Height1.1m (3.5ft)1.0m (3.3ft)0.9m (3.0ft)0.9m (2.9ft)0.9m (2.9ft)1.0m (3.2ft)1.2m (3.9ft)1.4m (4.5ft)
Direction 350°
N
352°
N
354°
N
351°
N
348°
NNW
318°
NW
319°
NW
323°
NW
Period10.2 sec.10.2 sec.10.1 sec.9.8 sec.9.7 sec.11.9 sec.11.8 sec.13.7 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.1m (0.3ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 06:55 and will set at 17:48 on the beach(es) of Wailuku. The outside temperature will be a high of 77°F t and a low of 74°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 8.1mph km/h (with gusts up to 11.8mph). Wave height will be up to 6.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)24°C (74°F)23°C (74°F)24°C (76°F)25°C (76°F)24°C (75°F)24°C (75°F)24°C (75°F)
Perceived temperature26°C (78°F)25°C (78°F)25°C (78°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%80%80%74%74%77%77%78%
Barometric pressure1014 hPa1014 hPa1015 hPa1017 hPa1015 hPa1014 hPa1015 hPa1016 hPa
Cloud cover73%18%70%17%21%51%28%76%
Heat index26°C (78°F)25°C (78°F)25°C (78°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (78°F)26°C (78°F)
Dew point20°C (68°F)20°C (68°F)20°C (68°F)20°C (67°F)19°C (67°F)20°C (68°F)20°C (67°F)20°C (68°F)
Wind
Speed8km/h (5mph)9km/h (6mph)5km/h (3mph)4km/h (3mph)11km/h (7mph)13km/h (8mph)6km/h (4mph)9km/h (6mph)
Gusts12km/h (7mph)14km/h (9mph)7km/h (5mph)6km/h (4mph)15km/h (10mph)19km/h (12mph)9km/h (6mph)13km/h (8mph)
Direction 215°
SW
183°
S
158°
SSE
195°
SSW
75°
ENE
113°
ESE
156°
SSE
193°
SSW
Wind chill24°C (74°F)24°C (74°F)23°C (74°F)24°C (76°F)25°C (76°F)24°C (75°F)24°C (75°F)24°C (75°F)
Waves
Height1.5m (4.9ft)1.5m (5.1ft)1.6m (5.2ft)1.6m (5.4ft)1.7m (5.7ft)1.9m (6.1ft)1.8m (6.0ft)1.7m (5.6ft)
Direction 326°
NW
331°
NNW
336°
NNW
341°
NNW
351°
N
354°
N
354°
N
355°
N
Period13.5 sec.13.2 sec.12.7 sec.14.3 sec.13.9 sec.13.5 sec.13.3 sec.12.9 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.7m (2.3ft)0.8m (2.6ft)0.1m (0.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 06:56 and will set at 17:48 on the beach(es) of Wailuku. The outside temperature will be a high of 77°F t and a low of 70°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 9.3mph km/h (with gusts up to 15.5mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (75°F)24°C (74°F)23°C (74°F)24°C (76°F)22°C (71°F)23°C (74°F)23°C (73°F)24°C (75°F)
Perceived temperature26°C (78°F)26°C (78°F)25°C (78°F)26°C (79°F)22°C (71°F)25°C (77°F)25°C (77°F)26°C (79°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%78%80%74%72%77%79%81%
Barometric pressure1015 hPa1015 hPa1015 hPa1016 hPa1015 hPa1013 hPa1014 hPa1015 hPa
Cloud cover71%43%25%10%7%6%74%75%
Heat index26°C (78°F)26°C (78°F)25°C (78°F)26°C (79°F)24°C (76°F)25°C (77°F)25°C (77°F)26°C (79°F)
Dew point20°C (67°F)20°C (67°F)20°C (67°F)19°C (67°F)16°C (61°F)19°C (66°F)19°C (67°F)20°C (69°F)
Wind
Speed5km/h (3mph)4km/h (2mph)6km/h (4mph)8km/h (5mph)10km/h (6mph)15km/h (9mph)13km/h (8mph)4km/h (2mph)
Gusts7km/h (4mph)5km/h (3mph)9km/h (6mph)11km/h (7mph)20km/h (13mph)25km/h (15mph)22km/h (14mph)6km/h (4mph)
Direction 149°
SSE
141°
SE
253°
WSW
251°
WSW
78°
ENE
69°
ENE
108°
ESE
167°
SSE
Wind chill24°C (75°F)24°C (74°F)23°C (74°F)24°C (76°F)22°C (71°F)23°C (74°F)23°C (73°F)24°C (75°F)
Waves
Height1.7m (5.4ft)1.6m (5.3ft)1.6m (5.3ft)1.5m (5.0ft)1.5m (4.9ft)1.6m (5.1ft)1.5m (5.0ft)1.5m (4.8ft)
Direction 355°
N
356°
N
357°
N
355°
N
356°
N
357°
N
356°
N
357°
N
Period13.2 sec.13.4 sec.13.3 sec.12.9 sec.12.7 sec.12.4 sec.12.0 sec.11.9 sec.
Significant height0.2m (0.7ft)0.3m (1ft)0.2m (0.7ft)0.1m (0.3ft)0.5m (1.6ft)0.9m (3ft)0.5m (1.6ft)0.1m (0.3ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 06:56 and will set at 17:49 on the beach(es) of Wailuku. The outside temperature will be a high of 77°F t and a low of 70°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 13.1mph km/h (with gusts up to 18.6mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (75°F)24°C (75°F)24°C (75°F)25°C (76°F)22°C (71°F)24°C (75°F)23°C (73°F)24°C (75°F)
Perceived temperature26°C (78°F)26°C (78°F)26°C (79°F)26°C (80°F)22°C (71°F)25°C (78°F)25°C (77°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%78%77%75%70%67%76%79%
Barometric pressure1014 hPa1013 hPa1013 hPa1015 hPa1013 hPa1011 hPa1013 hPa1014 hPa
Cloud cover83%9%72%80%5%6%5%4%
Heat index26°C (78°F)26°C (78°F)26°C (79°F)26°C (80°F)25°C (76°F)25°C (78°F)25°C (77°F)26°C (78°F)
Dew point20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)16°C (61°F)17°C (63°F)18°C (65°F)20°C (68°F)
Wind
Speed7km/h (4mph)14km/h (9mph)21km/h (13mph)14km/h (9mph)7km/h (4mph)5km/h (3mph)12km/h (7mph)12km/h (8mph)
Gusts10km/h (6mph)21km/h (13mph)30km/h (19mph)19km/h (12mph)14km/h (9mph)10km/h (6mph)22km/h (14mph)19km/h (11mph)
Direction 245°
WSW
215°
SW
210°
SSW
168°
SSE
123°
ESE
200°
SSW
213°
SSW
183°
S
Wind chill24°C (75°F)24°C (75°F)24°C (75°F)25°C (76°F)22°C (71°F)24°C (75°F)23°C (73°F)24°C (75°F)
Waves
Height1.5m (4.8ft)1.5m (4.8ft)1.4m (4.8ft)1.4m (4.7ft)1.4m (4.6ft)1.4m (4.5ft)1.3m (4.4ft)1.3m (4.4ft)
Direction 357°
N
356°
N
354°
N
353°
N
349°
N
349°
NNW
346°
NNW
344°
NNW
Period11.8 sec.13.5 sec.13.4 sec.13.3 sec.13.1 sec.12.9 sec.12.8 sec.12.7 sec.
Significant height1.4m (4.6ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.5m (1.6ft)1.0m (3.3ft)0.9m (3ft)1.1m (3.6ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 06:57 and will set at 17:49 on the beach(es) of Wailuku. The outside temperature will be a high of 77°F t and a low of 70°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 8.7mph km/h (with gusts up to 14.3mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (74°F)23°C (74°F)23°C (74°F)25°C (76°F)24°C (74°F)24°C (75°F)23°C (73°F)24°C (75°F)
Perceived temperature26°C (78°F)25°C (78°F)25°C (77°F)26°C (79°F)25°C (78°F)26°C (78°F)25°C (77°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%80%78%73%71%72%76%78%
Barometric pressure1014 hPa1012 hPa1013 hPa1015 hPa1014 hPa1013 hPa1014 hPa1016 hPa
Cloud cover2%3%5%3%3%71%11%10%
Heat index26°C (78°F)25°C (78°F)25°C (77°F)26°C (79°F)25°C (78°F)26°C (78°F)25°C (77°F)26°C (78°F)
Dew point20°C (68°F)20°C (67°F)19°C (66°F)19°C (67°F)18°C (64°F)19°C (65°F)19°C (66°F)20°C (67°F)
Wind
Speed9km/h (6mph)10km/h (6mph)11km/h (7mph)8km/h (5mph)14km/h (9mph)13km/h (8mph)11km/h (7mph)9km/h (6mph)
Gusts13km/h (8mph)15km/h (10mph)17km/h (10mph)11km/h (7mph)23km/h (14mph)20km/h (13mph)19km/h (12mph)14km/h (9mph)
Direction 216°
SW
213°
SSW
204°
SSW
163°
SSE
69°
ENE
71°
ENE
84°
E
107°
ESE
Wind chill24°C (74°F)23°C (74°F)23°C (74°F)25°C (76°F)24°C (74°F)24°C (75°F)23°C (73°F)24°C (75°F)
Waves
Height1.3m (4.4ft)1.3m (4.3ft)1.3m (4.3ft)1.3m (4.2ft)1.3m (4.3ft)1.7m (5.5ft)1.7m (5.5ft)1.7m (5.5ft)
Direction 344°
NNW
345°
NNW
344°
NNW
346°
NNW
347°
NNW
342°
NNW
343°
NNW
343°
NNW
Period12.6 sec.12.5 sec.12.3 sec.12.0 sec.13.8 sec.12.3 sec.12.7 sec.12.7 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.5m (1.6ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)23°C (74°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 06:57 and will set at 17:49 on the beach(es) of Wailuku. The outside temperature will be a high of 76°F t and a low of 74°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 14.9mph km/h (with gusts up to 23mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (75°F)23°C (74°F)24°C (74°F)24°C (75°F)24°C (75°F)24°C (74°F)24°C (75°F)24°C (76°F)
Perceived temperature26°C (78°F)25°C (78°F)25°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (79°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%76%78%79%79%81%82%82%
Barometric pressure1015 hPa1015 hPa1015 hPa1016 hPa1015 hPa1014 hPa1015 hPa1016 hPa
Cloud cover16%14%12%9%8%11%14%17%
Heat index26°C (78°F)25°C (78°F)25°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (79°F)
Dew point19°C (67°F)19°C (66°F)20°C (67°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (69°F)21°C (70°F)
Wind
Speed5km/h (3mph)5km/h (3mph)8km/h (5mph)14km/h (9mph)21km/h (13mph)24km/h (15mph)19km/h (12mph)14km/h (9mph)
Gusts7km/h (5mph)7km/h (4mph)12km/h (7mph)21km/h (13mph)32km/h (20mph)37km/h (23mph)31km/h (19mph)21km/h (13mph)
Direction 129°
SE
133°
SE
116°
ESE
95°
E
84°
E
84°
E
94°
E
110°
ESE
Wind chill24°C (75°F)23°C (74°F)24°C (74°F)24°C (75°F)24°C (75°F)24°C (74°F)24°C (75°F)24°C (76°F)
Waves
Height1.7m (5.5ft)1.7m (5.6ft)1.7m (5.6ft)1.7m (5.6ft)1.7m (5.6ft)1.7m (5.6ft)1.7m (5.6ft)1.8m (5.9ft)
Direction 344°
NNW
344°
NNW
344°
NNW
344°
NNW
345°
NNW
347°
NNW
347°
NNW
347°
NNW
Period12.6 sec.12.4 sec.12.1 sec.11.9 sec.11.7 sec.11.4 sec.11.2 sec.11.1 sec.
Significant height0.3m (1ft)0.7m (2.3ft)0.7m (2.3ft)0.5m (1.6ft)0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)
Sea water temperature
Water temperature23°C (74°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather on Saturday 20 December 2025

On Saturday 20 December 2025, the sun will rise at 06:58 and will set at 17:50 on the beach(es) of Wailuku. The outside temperature will be a high of 76°F t and a low of 74°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 14.9mph km/h (with gusts up to 21.8mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (74°F)23°C (74°F)23°C (74°F)24°C (74°F)
Perceived temperature26°C (79°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)25°C (78°F)26°C (78°F)26°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%79%79%80%82%84%84%83%
Barometric pressure1016 hPa1016 hPa1016 hPa1016 hPa1016 hPa1014 hPa1016 hPa1017 hPa
Cloud cover10%11%10%9%15%38%70%56%
Heat index26°C (79°F)26°C (78°F)26°C (78°F)26°C (78°F)26°C (78°F)25°C (78°F)26°C (78°F)26°C (78°F)
Dew point20°C (69°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)20°C (68°F)21°C (69°F)21°C (69°F)
Wind
Speed8km/h (5mph)7km/h (4mph)9km/h (6mph)17km/h (10mph)24km/h (15mph)22km/h (14mph)20km/h (12mph)22km/h (14mph)
Gusts12km/h (8mph)10km/h (6mph)13km/h (8mph)23km/h (14mph)35km/h (21mph)33km/h (20mph)28km/h (18mph)31km/h (19mph)
Direction 123°
ESE
122°
ESE
123°
ESE
98°
E
77°
ENE
72°
ENE
75°
ENE
85°
E
Wind chill24°C (75°F)24°C (75°F)24°C (75°F)24°C (75°F)24°C (74°F)23°C (74°F)23°C (74°F)24°C (74°F)
Waves
Height1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.8m (5.9ft)1.7m (5.6ft)
Direction 347°
NNW
347°
NNW
346°
NNW
347°
NNW
344°
NNW
339°
NNW
340°
NNW
342°
NNW
Period11.6 sec.12.9 sec.12.5 sec.12.0 sec.11.9 sec.11.8 sec.11.7 sec.11.6 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.3m (1ft)0.6m (2ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)
Sea water temperature
Water temperature25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)25°C (78°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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